Fig. 5

Phenotypic changes of EPS production, biofilm formation, motility, resistance to environmental stress in fabH1 deletion mutant. a Production of extracellular polysaccharide (EPS) in Xoo strains. b Biofilm production and its quantification of the Xoo strains on polystyrene tubes. c, d Typical bacterial halos, formed on semisolid 0.3% and 0.5% agar plates after incubation at 30°C for 2 days. e Relative activities of extracellular enzymes (cellulase and amylase) produced by Xoo strains on NA plates. f The Xoo strains were spotted onto NA plates containing increasing levels of NaCl, SDS, pH or H₂O₂. Values are the means ± SDs from three independent experiments. The asterisks above the error bars indicate significant differences compared with the wild-type strain (^**P < 0.01). All experiments were repeated three times with similar results